Colonic Arteriovenous Malformations

  • Sebastian G. de la Fuente
  • Christopher R. Mantyh


Arteriovenous malformations (also known as angiodysplasias, vascular ectasias, or angiomas) are defined as degenerative lesions of the gastrointestinal tract that result from chronic obstruction of the submucosal veins. Even though the etiology of these lesions is not well understood, a leading hypothesis is that peristaltic contractions of the muscular layers lead to chronic partial obstruction of submucosal veins of the intestinal wall and with time these veins become dilated and tortuous.


Bowel Preparation Arteriovenous Malformation Vascular Ectasia Endoscopic Forceps Biopsy 99mTc Sulfur Colloid 
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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Sebastian G. de la Fuente
    • 1
  • Christopher R. Mantyh
    • 2
  1. 1.General Surgery Residency Training ProgramDuke University Medical CenterDurhamUSA
  2. 2.Department of SurgeryDuke University Medical CenterDurhamUSA

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